低硅尾礦加氣混凝土蒸養(yǎng)條件下反應(yīng)機理的研究.pdf

1、武漢理工大學碩士學位論文低硅尾礦加氣混凝土蒸養(yǎng)條件下反應(yīng)機理的研究姓名：王舫申請學位級別：碩士專業(yè)：環(huán)境工程指導(dǎo)教師：陳吉春2003.5.1ABSTRACTTailingsbelongtOthesolidtrashofminingindustry，forthecharacteristicsoflargequantity，manytypesandcomplexnature，theutilizationrateofourcountrylow

2、verymuchreach7％onlyThereSOLlgCeoftailingsissocietyimportantprogramwithpresenteconomicdevelop，isalsoanewsubjectofpresentscienceandtechnologySinceithasnomajoravailableelementandmineral，andislongstonemainlysirengthisverylow

3、，ChengChaolows—silicontailingsishardtObeadditionalvalueUSehighIngeneralconditionwiththistailingsproducingaerocrete，qualityhardqualifiedTailingsactivealsodonotbeimmutable，itmayknowsurpassworkmeansactivation，generalmethods

4、havefollowing3kinds：mechanicalreductionlawhydrothermalsyntheticlawandalkalescencearouselawAccordingtoabovementionedway，thisresearchisonthefoundationofJiChunChenteacherresearchFocalpointshavestudiedstockcoordination，addit

5、ive，steamtopressmaintenancemethodfortheinfluenceofperformanceoflowsilicontailingsaerocretePlentyofcontrastexperimentshaveconfirmedpreviousresearchconclusionisrightlyFirstlyAccordingtotheprincipleofreasonablegrading，produ

6、cthasbetterperformancewhenquartzsandmilltothe200eyeO6％andtailingsmilltothe200eye14％SecondlytheadditiveWDbeselectedisideal，andexperimentproofstrengthofproductbiggestwhenpawnWD239ineachcubicalconcreteThirdlybestmaintenance

7、systemisdeterminedeventually：theconstanttemperatureis205c，theconstantpressureis2MPa，timeofheatingupis3h；thetimeofconstanttemperatureis9handtimeofcoolingdownis3hThroughXRDandSEM，samplesarecarriedoutmicroscopictestanalysis

8、forstudyingthechangeofmicroscopicstructureandhydrationoutcomecompositionofaerocreteproductAnalysisfortheproducthydrationprocessofnaturalmaintenanceshowtailingsandquartzsandsurfaceisadvantageforthemajorinfluenceofhydratio